Drying kiln convenient for moisture removal

Abstract

The utility model provides a drying kiln convenient for moisture removal, which belongs to the technical field of sintering material manufacturing equipment, an air outlet pipe is positioned on the side surface of a box body, a dust removal net is arranged on the connecting surface of the air outlet pipe and the box body, and a water outlet is positioned on the bottom surface of the air outlet pipe. The two air outlet pipes are bent upwards from the two side faces of the box body to penetrate through the drying device to be communicated, the two sets of air inlet pipes are arranged and communicated with the two sides of the dryer respectively, each set of air inlet pipes is provided with three branch pipes, one ends of the three branch pipes are communicated with the box body, the other ends of the three branch pipes are all communicated with the exhaust fan, and the exhaust fan is communicated with the drying device. The exhaust fans on the two sides communicate with the drying device. By means of the device, water vapor and dust generated in the drying process can be effectively removed, it is guaranteed that a heat source is evenly distributed and the temperature is stable, outside air is not additionally used or waste gas is not discharged to the outside on the premise that the drying effect is guaranteed, and good practicability and environment friendliness are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sintering material manufacturing equipment, in particular to a drying kiln which is convenient for dehumidification. Background Art

[0002] In the industrial production process of sintered materials, the raw materials need to be dried after being formed before they can enter the sintering step in the tunnel kiln. Currently, drying is generally done in the following two ways: the first is to expose the raw materials to be dried to the sun, using solar energy to evaporate the moisture in the raw materials to achieve the purpose of drying. However, this method of drying the raw materials is greatly affected by the weather when drying the raw materials. At the same time, the temperature of natural light is low and unstable, which makes the production efficiency very low and the production quality difficult to guarantee. The second method is to use a drying kiln to dry the raw materials. Existing drying kilns generally use coal, fuel oil or natural gas as the only heat source. Although the production efficiency is high, it is difficult to achieve constant temperature and balanced distribution of heat sources. At the same time, the existing technology cannot automatically remove the water vapor generated during the drying process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a drying kiln which is convenient for dehumidification and has a constant temperature.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A drying kiln that is convenient for dehumidification comprises a drying device, a drain outlet, a box body, an air outlet pipe, an air inlet pipe and an exhaust fan. The air outlet pipe is located on the side of the box body, and a dust removal net is provided on the connecting surface with the box body. The drain outlet is located on the bottom surface of the air outlet pipe. The two air outlet pipes are bent upward from the two side surfaces of the box body and then connected after passing through the drying device. There are two groups of air inlet pipes, which are respectively connected to both sides of the drying device. Each group of air inlet pipes has three branches. One end of the three branches is respectively connected to the box body, and the other end is connected to one of the exhaust fans. The exhaust fans on both sides are connected to the drying device.

[0006] One of the three branch pipes of the air inlet pipe is connected to the top of the box body, and the other two are respectively connected to the two side surfaces of the box body.

[0007] Furthermore, a drainage pipe is connected to the bottom side of the drying device.

[0008] Furthermore, the drying device includes four dryers and a central chamber, the four dryers are all connected to the central chamber, and the two air outlet pipes and the two exhaust fans are respectively connected to one drying device.

[0009] Furthermore, the dryer is a steam-water separator or a drying box.

[0010] Furthermore, it is characterized in that: a safety door is provided on the side of the box, a conveyor belt is provided at the bottom of the box, the upper surface of the conveyor belt is flush with the lower surface of the box, and a slide groove is provided on the lower surface of the box along the movement direction of the conveyor belt.

[0011] Furthermore, a heating tube is provided at the bottom of the inner side of the box, and a humidity sensor and a temperature sensor are provided in sequence above the heating tube.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1) Remove steam condensate twice to improve drying effect;

[0014] 2) Air circulates inside the drying kiln without generating additional exhaust gas;

[0015] 3) The heat source temperature can be adjusted flexibly and evenly distributed to avoid product quality degradation due to delayed adjustment effect and local heat accumulation;

[0016] 4) The heating tube uses electricity to generate heat, which is more environmentally friendly and has a higher utilization rate than traditional fossil energy;

[0017] 5) The temperature sensor and humidity sensor make it easy to know the situation inside the drying kiln when it is working, so as to adjust the heating tube temperature and exhaust fan speed in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a drying kiln for facilitating moisture removal in Example 1 of the present utility model.

[0019] Among them, 1-drying device, 2-temperature sensor, 3-humidity sensor, 4-heating tube, 5-conveyor belt, 6-safety door, 7-drain pipe, 8-ash cleaning port, 9-box, 10-air outlet pipe, 11-air inlet pipe, 12-exhaust fan. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "horizontal," "top," "side," "far," "near," "inner," and "outer" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In this utility model, it should be noted that, unless otherwise specified or limited, terms such as "connection" should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integration; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0023] Example 1

[0024] See Figure 1 , including a drying device 1, a temperature sensor 2, a humidity sensor 3, a heating tube 4, a conveyor belt 5, a safety door 6, a drain pipe 7, a drain outlet 8, a box body 9, an air outlet pipe 10, an air inlet pipe 11 and an exhaust fan 12. According to the actual height of the factory building, the dryer is a steam-water separator or a drying box. The drying device 1 includes a total of four dryers and a central chamber, all of which are located on the upper surface of the box body 9. A safety door 6 is provided on the side of the box body 9. The safety door 6 is an insulated door and the sealing strip installed on the edge can isolate the internal gas or dust from overflowing when the drying kiln is working. A conveyor belt 5 is provided at the bottom of the box body 9. The upper surface of the conveyor belt 5 is flush with the lower surface of the box body 9, so that the kiln car loaded with bricks to be dried can be moved in or out of the drying kiln effortlessly. The lower surface of the box 9 is provided with two chutes along the direction of movement of the conveyor belt 5, near the edges of both sides of the conveyor belt 5. The chutes can limit the direction of movement of the kiln car, so that the kiln car does not need to consider the problem of left and right swinging when entering and exiting the drying kiln. At the same time, it can also prevent debris from the side from falling into the gap between the conveyor belt 5 and the box 9, causing malfunction of the conveyor belt 5. A heating tube 4 is provided at the bottom of the inner side of the box 9, and a humidity sensor 3 and a temperature sensor 2 are provided above the heating tube 4 in sequence. Considering that the moisture in the bricks to be dried will sink due to gravity, the humidity at the bottom needs to be monitored. The brick drying process will not end until the humidity at the bottom meets the requirements. Since the bottom is close to the heating tube 4, the temperature sensor 2 should be far away from the heating tube 4.

[0025] The air outlet duct 10 is located on both sides of the box body 9. The air outlet duct 10 on each side is a pipe that is converged into two branches arranged on the sides of the box body 9. A dust removal net is provided on the connection surface between the air outlet duct 10 and the box body 9. The drain outlet 8 is located on the bottom surface of the air outlet duct 10. The air outlet ducts 10 on both sides of the box body 9 exceed the height of the side of the box body 9 upward and then bend toward the center of the top surface of the box body 9. They are respectively connected to one of the dryers and then connected to the central cavity on the top surface of the box body 9. The air inlets of the air inlet duct 11 are distributed on the top and sides of the box body 9, of which there are four on the two sides of the top surface. The air inlet located on the side of the box body 9 is lower than the air outlet. The three adjacent air inlets are connected to the exhaust fan 12 and the drying device 1 in turn and then connected to the central cavity.

[0026] A drainage pipe 7 is connected to the bottom side of the drying device 1 .

[0027] When the drying kiln is operating, the highly humid air within the housing 9 is drawn into the air outlet, where dust is filtered out by a dust screen. At the bottom of the outlet pipe 10 connected to the outlet, the steam condenses at a bend due to its changing trajectory. Therefore, the drain outlet 8, connected to the pipe, can initially separate some of the evaporated water. The steam then ascends along the outlet pipe 10, passes through the drying device 1, and enters the central chamber. It then follows the pipe to the drying device 1 near the exhaust fan 12. After a third drying step, it is blown back into the housing 9 through the air inlet. This achieves internal air circulation within the drying kiln, preventing exhaust gas from escaping into the atmosphere. It also reuses the heat carried by the circulating air within the kiln, eliminating the need for the heating tube 4 to operate at high power, effectively saving energy. To promptly remove condensed water, drain pipes 7 are connected to the drying device 1 and the bottom side of the central chamber. After drying in the kiln, the bricks are moisture-free and can be safely transported to the subsequent tunnel kiln for firing.

[0028] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention, which are only used to illustrate the technical solution of the present invention and are not limiting. Any modifications, improvements, other modifications or equivalent replacements made to the technical solution of the present invention by ordinary technicians in this field, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be included in the scope of protection of the present invention.

Claims

1. A drying kiln that facilitates moisture removal, characterized by: The invention comprises a drying device (1), a drain outlet (8), a box (9), an air outlet pipe (10), an air inlet pipe (11) and an exhaust fan (12). The air outlet pipe (10) is located on the side of the box (9), and a dust removal net is provided on the connection surface with the box (9). The drain outlet (8) is located on the bottom surface of the air outlet pipe (10). The two air outlet pipes (10) are bent upward from the two sides of the box (9) and are connected after passing through the drying device (1). There are two groups of air inlet pipes (11), which are respectively connected to the two sides of the drying device (1). Each group of air inlet pipes (11) has three branches. One end of the three branches is respectively connected to the box (9), and the other end is connected to one exhaust fan (12). The exhaust fans (12) on both sides are connected to the drying device (1).

2. The drying kiln for easy dehumidification according to claim 1, characterized in that: One of the three branch pipes of the air inlet pipe (11) is connected to the top of the box body (9), and the other two are respectively connected to the two side surfaces of the box body (9).

3. The drying kiln for facilitating moisture removal according to claim 1, characterized in that: A drainage pipe (7) is connected to the bottom side of the drying device (1).

4. The drying kiln for easy dehumidification according to claim 1, characterized in that: The drying device (1) comprises four dryers and a central chamber, the four dryers are all connected to the central chamber, and the two air outlet pipes (10) and the two exhaust fans (12) are respectively connected to one drying device (1).

5. The drying kiln for easy moisture removal according to claim 4, characterized in that: The dryer is a steam-water separator or a drying box.

6. The drying kiln for facilitating moisture removal according to claim 1, characterized in that: A safety door (6) is provided on the side of the box body (9), a conveyor belt (5) is provided at the bottom of the box body (9), the upper surface of the conveyor belt (5) is flush with the lower surface of the box body (9), and a slide groove is provided on the lower surface of the box body (9) along the moving direction of the conveyor belt (5).

7. The drying kiln for facilitating moisture removal according to claim 1, characterized in that: A heating tube (4) is provided at the bottom of the inner side of the box body (9), and a humidity sensor (3) and a temperature sensor (2) are provided in sequence above the heating tube (4).

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